Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

11895 vulnerabilities reference this CWE, most recent first.

CVE-2026-94453 (GCVE-0-2026-94453)

Vulnerability from cvelistv5 – Published: 2026-10-13 21:27 – Updated: 2026-10-16 15:31
VLAI
Title
IKEv2 Use-After-Free bug when using IKE-over-TCP
Summary
Libreswan's pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet (retransmit or malicious) is received for the same tuple. IKE state is retained in memory after the client closes the connection, storing a pointer to iface_endpoint inside ike_sa.sa->st_iface_endpoint. Once this invalid pointer is used, the daemon crashes and restarts. This vulnerability can be triggered before the remote peer has authenticated itself. Continued exploitation can lead to a denial of service. Remote code execution could be possible. The IKE over TCP option is not enabled by default; only configurations that contain listen-tcp=yes are affected.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:14 UTC
CWE
Assigner
libreswan CNA under the mitre root
CNA scorecard – unranked: 8 records in the last 180 days, 10 needed details
Impacted products
Vendor Product Version
The Libreswan Project libreswan Affected: 4.0 , ≤ 5.3.2 (semver)
Affected: 5.4 , ≤ 5.4 (semver)
Unaffected: 5.3.3 (semver)
Unaffected: 5.4.1 (semver)
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Credits
Show details on NVD website

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CVE-2026-94370 (GCVE-0-2026-94370)

Vulnerability from cvelistv5 – Published: 2026-10-14 05:43 – Updated: 2026-10-14 16:02
VLAI
Title
Memory corruption (double free / use-after-free) vulnerability in core string handling impacts Qt for MCUs
Summary
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SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 16:02 UTC
CWE
Assigner
Qt CNA under the mitre root
CNA scorecard A 90/100 over 10 records in the last 180 days details
References
Impacted products
Vendor Product Version
qt Qt_for_MCUs Affected: 2.12.1 , < 2.12.3 (python)
    cpe:2.3:a:qt:qt_for_mcus:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-94084 (GCVE-0-2026-94084)

Vulnerability from cvelistv5 – Published: 2026-09-20 01:20 – Updated: 2026-09-22 18:27
VLAI
Summary
Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:24 UTC
CWE
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2339 records in the last 180 days details
Impacted products
Vendor Product Version
OISF Suricata Affected: 0 , < 8.0.7 (semver)
    cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-94055 (GCVE-0-2026-94055)

Vulnerability from cvelistv5 – Published: 2026-09-19 22:48 – Updated: 2026-09-21 15:19
VLAI
Summary
Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 15:18 UTC
CWE
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2339 records in the last 180 days details
Impacted products
Vendor Product Version
Exim Exim Affected: 4.98 , < 4.100.1 (custom)
    cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
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CVE-2026-93834 (GCVE-0-2026-93834)

Vulnerability from cvelistv5 – Published: 2026-09-25 13:36 – Updated: 2026-09-25 13:50
VLAI
Title
Qemu-kvm: 9pfs: use-after-free race in tlcreate/twalk allows vm guest escape
Summary
A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a malicious guest user to craft a fid path containing stale heap data, bypassing directory traversal restrictions and escaping the shared directory boundary. This can lead to arbitrary host file read/write and code execution (VM escape) as the QEMU process user.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 13:49 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1036 records in the last 180 days details
Date Public
2026-09-22 00:00
Show details on NVD website

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CVE-2026-93586 (GCVE-0-2026-93586)

Vulnerability from cvelistv5 – Published: 2026-09-18 13:20 – Updated: 2026-09-18 19:06
VLAI
Title
ImageMagick before 7.1.2-31 Use After Free via ImagesToBlob
Summary
ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a use-after-free vulnerability in the ImagesToBlob method, caused by a pointer that is not updated correctly. Exploitation may result in a limited availability impact (e.g., a crash of the affected process). The issue is fixed in versions 7.1.2-31 and 6.9.13-56.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:05 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6398 records in the last 180 days details
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-31 (semver)
Unaffected: 7.1.2-31 (semver)
Create a notification for this product.
ImageMagick ImageMagick Affected: 0 , < 6.9.13-56 (semver)
Unaffected: 6.9.13-56 (semver)
Create a notification for this product.
Date Public
2026-09-03 00:00
Credits
Show details on NVD website

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CVE-2026-92627 (GCVE-0-2026-92627)

Vulnerability from cvelistv5 – Published: 2026-09-16 15:16 – Updated: 2026-09-17 17:36
VLAI
Title
Heap Use-After-Free in H5T__conv_f_f
Summary
A heap-use-after-free vulnerability exists in H5T__conv_f_f() in src/H5Tconv.c in HDF5 before 1.14.2. When converting a compound datatype containing floating-point members during a dataset read, a temporary buffer allocated with calloc() is freed and subsequently read from within the same conversion routine. An attacker who can supply a crafted HDF5 file containing a specially constructed compound datatype can trigger the use-after-free when the file is parsed by an application that reads the affected dataset, such as h5dump. This can result in a crash and, depending on heap layout and allocator behavior, may be exploitable for further memory corruption up to remote code execution.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:36 UTC
CWE
Assigner
HDFG CNA under the redhat root
CNA scorecard C 71/100 over 12 records in the last 180 days details
Impacted products
Vendor Product Version
The HDF Group HDF5 Affected: < 1.14.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-92474 (GCVE-0-2026-92474)

Vulnerability from cvelistv5 – Published: 2026-09-16 19:15 – Updated: 2026-09-17 16:12 X_Open Source
VLAI
Title
GPAC Proto Link mpeg4_inline.c gf_inline_get_proto_lib use after free
Summary
A security flaw has been discovered in GPAC 26.08-DEV. This affects the function gf_inline_get_proto_lib of the file src/compositor/mpeg4_inline.c of the component Proto Link Handler. The manipulation results in use after free. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. Upgrading to version abi-16.24 mitigates this issue. The patch is identified as e34f4ba349d55cd1849f0bcf4cf46552732e2db7. Upgrading the affected component is recommended.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 16:12 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3810 records in the last 180 days details
Impacted products
Vendor Product Version
n/a GPAC Affected: 26.08-DEV
Unaffected: abi-16.24
    cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-92473 (GCVE-0-2026-92473)

Vulnerability from cvelistv5 – Published: 2026-09-16 19:00 – Updated: 2026-09-18 18:21 X_Open Source
VLAI
Title
GPAC BIFS commands.c gf_sg_command_del use after free
Summary
A vulnerability was identified in GPAC 26.08-DEV. The impacted element is the function gf_sg_command_del of the file src/scenegraph/commands.c of the component BIFS Handler. The manipulation leads to use after free. The attack needs to be performed locally. The exploit is publicly available and might be used. Upgrading to version abi-16.24 is sufficient to resolve this issue. The identifier of the patch is e34f4ba349d55cd1849f0bcf4cf46552732e2db7. It is suggested to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 18:21 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3810 records in the last 180 days details
Impacted products
Vendor Product Version
n/a GPAC Affected: 26.08-DEV
Unaffected: abi-16.24
    cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-92472 (GCVE-0-2026-92472)

Vulnerability from cvelistv5 – Published: 2026-09-16 18:45 – Updated: 2026-09-16 19:39 X_Open Source
VLAI
Title
GPAC MP4Box base_scenegraph.c gf_node_deactivate_ex use after free
Summary
A vulnerability was determined in GPAC 26.08-DEV. The affected element is the function gf_node_deactivate_ex of the file src/scenegraph/base_scenegraph.c of the component MP4Box. Executing a manipulation can lead to use after free. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.24 is sufficient to fix this issue. This patch is called e34f4ba349d55cd1849f0bcf4cf46552732e2db7. The affected component should be upgraded. This issue is distinct from CVE-2026-90827.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 19:39 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3810 records in the last 180 days details
Impacted products
Vendor Product Version
n/a GPAC Affected: 26.08-DEV
Unaffected: abi-16.24
    cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*
Show details on NVD website

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  "cveMetadata": {
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    "datePublished": "2026-09-16T18:45:09.740Z",
    "dateReserved": "2026-09-16T12:14:44.571Z",
    "dateUpdated": "2026-09-16T19:39:53.908Z",
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}

Mitigation
Architecture and Design

Strategy: Language Selection

Choose a language that provides automatic memory management.

Mitigation
Implementation

Strategy: Attack Surface Reduction

When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.

No CAPEC attack patterns related to this CWE.